- A former strip of land between the German territories of Pomerania and East Prussia awarded to Poland by the Treaty of Versailles (1919) to afford access to the Baltic Sea. Friction over control of the area was an immediate cause of the German invasion of Poland (September 1, 1939) that marked the beginning of World War II.波兰走廊：旧时的一块狭长地段，位于波米兰尼亚的德国部分和东普鲁士之间，凡尔赛和约(1919年）将其割给波兰，以给该国提供在波罗的海的出海口。关于该地区的控制的冲突是德国对波兰入侵(1939年9月1日）的一个直接原因，它标志着第二次世界大战的开始